(Bloomberg) — The line starts off forming exterior the central lender in downtown La Paz in the dead of the night. Hunkered down underneath blankets and sipping sizzling chocolate to fend off the chill at 12,000 feet up in the Andes, they wait for several hours and hours for a chance to get their palms on what has maybe become the most difficult detail to uncover in all of Bolivia: dollars. Most Browse from Bloomberg There are handful of, if any, at business banks or forex-trade houses or even in the black marketplace, exactly where traders get the job done from corner kiosks in the shadow of the central lender.…